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參數(shù)資料
| 型號： | PT7D6555 |
| 英文描述： | -40V Single P-Channel HEXFET Power MOSFET in a TSOP-6 (Micro 6) package |
| 中文描述： | 擴展的PCM接口控制器？ |
| 文件頁數(shù)： | 39/56頁 |
| 文件大?。?/td> | 489K |
| 代理商： | PT7D6555 |
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Preliminary Data Sheet
PT7D6555
Extended PCM Interface Controller
39
PT0105(08/02)
Ver:0
Synchronous Transfer Control Register (STCR) Address: 12H(0/9H) Read/Write
Value after reset: 00XXXXXXB
7 0
TBE
TAE
CTB2
CTB1
CTB0
CTA2
CTA1
CTA0
The STCR register bits are used to enable or disable the synchronous transfer utility and to determine the sub time slot
bandwidth and position if a PCM interface time slot is involved.
TAE, TBE
Transfer Channel A (B) Enable.
1
…
enables the mP transfer of the corresponding channel.
0
…
disables the mP transfer of the corresponding channel.
CTA2..0 /CTB2..0
Channel Type A (B);
these bits determine the bandwidth of the channel and the position of the relevant
bits in the time slot according to the table below.
Note:
if a CFI time slot is selected as receive or transmit time slot of the synchronous transfer, the 64-kbit/s
bandwidth must be selected (CT#2..CT#0 = 001).
CT#2 CT#1 CT#0
Bandwidth
Transferred Bits
0
0
0
Not allowed
-
0
0
1
64 kbit/s
Bits 7
…
0
0
1
0
32 kbit/s
Bits 3
…
0
0
1
1
32 kbit/s
Bits 7
…
4
1
0
0
16 kbit/s
Bits 1
…
0
1
0
1
16 kbit/s
Bits 3
…
2
1
1
0
16 kbit/s
Bits 5
…
4
1
1
1
16 kbit/s
Bits 7
…
6
Monitor/Feature Control Registers
MF-Channel Active Indication Register (MFAIR) Address: 14H(0/AH) Read
Value after reset: 00000000B
7 0
0
SO
SAD5
SAD4
SAD3
SAD2
SAD1
SAD0
This register is only used in IOM-2 applications (active handshake protocol) in order to identify active monitor channels when
the
“
Search for active monitor channels
”
command (CMDR:MFSO) has been executed.
SO
MF Channel Search On.
0
…
the search is completed.
1
…
the PT7D6555 is still busy looking for an active channel.
SAD5..0
Subscriber Address 5..0;
after an ISTA: MAC interrupt these bits point to the port and time slot where an active
channel has been found. The coding is identical to MFSAR: SAD5
…
SAD0.
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